Improvement in step-spindles



llnitcd giant parte eine.

ELIII-IALET DOUGHERTY, OF N ORTII LEWISBURG, OIIIO, ASSIGNOR TO IIIM-SELF AND J. lll/FLOOD, OF SAME PLAGE.

L cttcrs Patent No. 101,109, date-cl llIarch 22, 1870.

IMPROVEMENT N STEP-SPINDLES.

The Schedule referred to n these Letters Patent and making part of thesame.

To all whom it may concern Beit known that I, ELI'rnALnT Douennn'rv, ofNorth Lewisburg, in the county of Ohampai gn and in the State of Ohio,have invented certain new and useful Improvements in Step-spindles; anddo hereby declare that the following is a full, clcar,'and exactdescription thereof, reference being had to the accompanying drawingsand to the letters of reference marked thereon, making a part of thisspecification.

rI`he nature of my invention consists in the construction andarrangement of a step-joint with ratchet and bearing, so as to place arun of stone directly over a perpemlicular sha-ft, in order that none ofthe weight ofthe stone spindle or driver bears on the water-wheel shalt,or so as to place one joint of heavy Shaft-ing perpendicular. aboveanother, and each separate joint bears its own weight, and by theratchet all damage from the sudden stoppage of the drivingwheel isprevented, for the reason that the machinery is allowed to run on by itsown momentum, without inthe slightest injuring the machinery by theshock.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawings, in which-Figure 1 is a vertical section, and

Iligure 2, a horizontal section of my invention.

A represents a circular plate, with tube extending downward, and isiirmly secured in the bridge-tree.

\Vitllin thistube is placed another' tube and plate,

B, provided with an inner rim, a, and an outer rim,.

l), extending above its face, forming a suitable receptacle for thelubricating substance.

Around the inner rim a is placed a fiat ring, d, upon which the hollowstep-spindle is to move.

At or near the outer edge on the upper side of this ring d is placedanother steel ring, c, which surrounds the spindle and keeps it 1n placewhile running.

Screws f j' rass through the outer rim l) and bear against the ring@which serves to tram the spindle to the face of the stone, or to linethe shafting, if the step-spindle is used on such.

. The outer rim b isprovided with two ears or pivots,

g g, which rest upon the lever C, so that the entire plate and tube Bcan be raised or lowered while the stone is grinding, or to adjust theshaftinr.

D is the step-spindle, which is hollow, and provided with slots h l1.,in which the driver works.

rlhe foot of the step D is formed by shrinking a steel band around themain casting, as shown in figl.

The driving-shalt E passes up through the tube B,

and is near its upper end 'ln'ovided with thelowerhalt' viof a ratchet,the upper half of which is formed by the driver (l, placed upon theshaft and iitting within the slots hy h ot' the step I).

A spring, on, at the upper end of the shaft ll holds the driver G closeto the ratchet i.

It will readily be seen that when the machinery is in operation, thewater-wheel may be stopped by driftwood or from any other causesuddenly, and still the machinery is allowed to run on by its ownmomentum, without becoming injured from the. sudden shock. i

Having thus fully described my invention,

That I claim as new, and desireto secure by Letters Patent, is

1. The hollow spindle-foot D, provided with a steel ring shrunk aroundits lower end, substantially as and for the purposes hereinv set forth..

2..lhe driver' G, ratchet Ii, and spring m, working inside of the hollowstep I), substantially as and for the purposes herein set i'orth.

3. The combina-tion ofthe hollow step I) and rings d and e,substantially as and for the purposes herein s et forth.

4. rlhe plate and tube B, provided with rims a and 1J and ears or pivotsg g, all substantially as and for lthe purposes herein set forth.

o. lhe combiuatiouof the plat-es and tubes A B, lever C, hollow stop I),rings d c, shaft Ill, driver G, ratcheti, and spring nl, all constructedas described, and arranged to operate substantially in the manner andfor the purposes herein set forth.

In testimony that I claim .the foregoing, I have hereunto set my handthis 6th day of December, 186i).

Witnesses Il. l). GoMnv, .l. li. lllJN'rnn.

